onAdd:_Event_String_Void<String ‑> Void> = new Event<String>()
onDelete:_Event_String_Void<String ‑> Void> = new Event<String>()
onModify:_Event_String_Void<String ‑> Void> = new Event<String>()
onMove:_Event_String_String_Void<String ‑> String ‑> Void> = new Event<String -> String>()